Buggy code:
public class SearchPage { private final WebDriver driver ; private final int timeoutInSeconds ; private final PhenotypePipelineDAO phenotypePipelineDAO ; private final String baseUrl ; private final WebDriverWait wait ; private String target ; private Random random = new Random ( ) ; private SearchGeneTable geneTable ; private SearchPhenotypeTable phenotypeTable ; private SearchDiseaseTable diseaseTable ; private SearchAnatomyTable anatomyTable ; private SearchProcedureTable procedureTable ; private SearchImpcImageTable impcImageTable ; private SearchImageTable imageTable ; public static final String GENE_CORE = "gene" ; public static final String PHENOTYPE_CORE = "phenotype" ; public static final String DISEASE_CORE = "disease" ; public static final String ANATOMY_CORE = "anatomy" ; public static final String IMPC_IMAGES_CORE = "impc_images" ; public static final String IMAGES_CORE = "images" ; public static final String GENE_ID = "gene" ; public static final String PHENOTYPE_ID = "mp" ; public static final String DISEASE_ID = "disease" ; public static final String ANATOMY_ID = "ma" ; public static final String IMPC_IMAGES_ID = "impc_images" ; public static final String IMAGES_ID = "images" ; private final Logger log = Logger . getLogger ( this . getClass ( ) . getCanonicalName ( ) ) ; public enum DownloadType { PAGINATED_TSV , PAGINATED_XLS , ALL_TSV , ALL_XLS ; } public enum Facet { GENES ( SearchPage . GENE_CORE ) , PHENOTYPES ( SearchPage . PHENOTYPE_CORE ) , DISEASES ( SearchPage . DISEASE_CORE ) , ANATOMY ( SearchPage . ANATOMY_CORE ) , IMPC_IMAGES ( SearchPage . IMPC_IMAGES_CORE ) , IMAGES ( SearchPage . IMAGES_CORE ) ; private final String coreName ; private String facetId = "" ; Facet ( String coreName ) { } public String getCoreName ( ) { } public String getFacetId ( ) { } } public class FacetFilter { public final SearchPage . Facet facet ; public final List < String > subfacetTexts = new ArrayList ( ) ; public FacetFilter ( ) { } public FacetFilter ( SearchPage . Facet facet ) { } } public enum PageDirective { PREVIOUS , FIRST_NUMBERED , SECOND_NUMBERED , THIRD_NUMBERED , FOURTH_NUMBERED , FIFTH_NUMBERED , ELLIPSIS , LAST , NEXT ; } public enum WindowState { OPEN , CLOSED ; } public SearchPage ( WebDriver driver , int timeoutInSeconds , PhenotypePipelineDAO phenotypePipelineDAO , String baseUrl ) { } public SearchPage ( WebDriver driver , int timeoutInSeconds , String target , PhenotypePipelineDAO phenotypePipelineDAO , String baseUrl ) throws RuntimeException { } public SearchPage . WindowState getFacetState ( SearchPage . Facet facet ) { } public HashMap < SearchPage . Facet , SearchPage . FacetFilter > getFacetFilter ( ) { HashMap < SearchPage . Facet , SearchPage . FacetFilter > results = new HashMap ( ) ; WebElement ffilterElement = driver . findElement ( By . xpath ( "////div[@class='ffilter']" ) ) ; if ( hasFilters ( ) ) { List < WebElement > liElements = ffilterElement . findElements ( By . cssSelector ( "ul#facetFilter<seq2seq4repair_space>><seq2seq4repair_space>li" ) ) ; for ( WebElement liElement : liElements ) { SearchPage . FacetFilter facetFilter ; String facetName = liElement . findElement ( By . cssSelector ( "span" ) ) . getText ( ) ; switch ( facetName ) { case "Gene" : facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . GENES ) ; break ; case "Phenotype" : facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . PHENOTYPES ) ; break ; case "Disease" : facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . DISEASES ) ; break ; case "Anatomy" : facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . ANATOMY ) ; break ; case "IMPC<seq2seq4repair_space>Images" : <START_BUG> facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . IMAGES ) ; <END_BUG> break ; case "Images" : facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . IMAGES ) ; break ; default : continue ; } List < WebElement > ulElements = liElement . findElements ( By . cssSelector ( "ul" ) ) ; for ( WebElement ulElement : ulElements ) { facetFilter . subfacetTexts . add ( ulElement . findElement ( By . cssSelector ( "li<seq2seq4repair_space>a" ) ) . getText ( ) ) ; } results . put ( facetFilter . facet , facetFilter ) ; } } return results ; } public void openFacet ( SearchPage . Facet facet ) { } public void closeFacet ( SearchPage . Facet facet ) { } public void clearFilters ( ) { } public boolean hasFilters ( ) { } public void clickDownloadButton ( SearchPage . DownloadType downloadType ) { } public int clickFacet ( SearchPage . Facet facet ) { } public int clickFacetById ( String facetId ) { } public SearchPage . PageDirective clickPageButton ( ) throws Exception { } public void clickPageButton ( SearchPage . PageDirective pageButton ) throws Exception { } public void clickToolbox ( SearchPage . WindowState desiredWindowState ) { } public SearchAnatomyTable getAnatomyTable ( ) { } public class AutosuggestRow { public final String annotationType ; public final String value ; public AutosuggestRow ( ) { } public AutosuggestRow ( String annotationType , String value ) { } @ Override public String toString ( ) { } } public List < SearchPage . AutosuggestRow > getAutosuggest ( String searchString ) { } public String getBaseUrl ( ) { } public WebElement getButton ( int buttonIndex ) throws IndexOutOfBoundsException { } public SearchDiseaseTable getDiseaseTable ( ) { } public int getFacetCount ( SearchPage . Facet facet ) { } public int getFacetCount ( String coreName ) { } public SearchPage . Facet getFacetByCoreName ( String coreName ) throws RuntimeException { } public String getFacetId ( SearchPage . Facet facet ) { } public SearchGeneTable getGeneTable ( ) { } public SearchImpcImageTable getImpcImageTable ( ) { } public SearchImageTable getImageTable ( ) { } public int getNumPageButtons ( ) { } public SearchPage . PageDirective getPageDirective ( int buttonIndex ) throws IndexOutOfBoundsException { } public SearchPhenotypeTable getPhenotypeTable ( ) { } public SearchProcedureTable getProcedureTable ( ) { } public int getResultCount ( ) { }

Fix:
facetFilter = new SearchPage . FacetFilter ( SearchPage . Facet . IMPC_IMAGES ) ;